Sargent 8224 Heavy Duty Mortis...
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$1,773.66
$1,260.68
Sargent Sargent 8200 Series - (8224) Room Door Function Rose Trim, Heavy Duty Single Cylinder with Deadbolt Mortise Lock, Grade 1 SGT-8224

Sargent 8224 Heavy Duty Mortise Lock with Deadbolt - Grade 1 Room Door Function

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Model: 8224 EA 26D
From the 8200 Series Collection
$1,773.66
$1,260.68
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,773.66
$1,260.68
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Sargent 8224 Heavy Duty Mortise Lock with Deadbolt - Grade 1 Commercial Security

Industry Benchmark Mortise Lock with Maximum Security and Performance

The Sargent 8224 heavy duty mortise lock represents the industry benchmark for commercial mortise locks, delivering maximum security, performance, and durability with high-quality components. This Grade 1 single cylinder mortise lock with deadbolt features a 2 3/4" backset, 1 3/4" door thickness compatibility, and 3/4" latchbolt throw for reliable operation. The multi-functional lock body accommodates various lever and escutcheon styles while maintaining robust construction that exceeds independently verified testing standards.

Professional Features & Benefits

  • Heavy-Duty Durability: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for exceptional longevity in high-traffic commercial applications.
  • Grade 1 Performance: ANSI/BHMA A156.13 Series 1000 Operational Grade 1 certification ensures maximum security and reliability for commercial door applications.
  • Flexible Installation: 2 3/4" standard backset with 1 3/4" door thickness and field reversible handing for versatile installation requirements.
  • Advanced Security Features: Single cylinder with deadbolt construction provides multiple security features with resistance against vandalism and unauthorized entry.
  • Universal Key System Compatibility: Integrates with all SARGENT key systems including Degree, Signature, KESO, and XC for comprehensive access control solutions.
  • Multi-Functional Design: Available in 56 different functions including electromechanical, security and monitoring options with on-site function switching capability.
  • Fire Safety Compliance: UL 10C Fire-Rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Comprehensive Warranty: 10-year limited warranty with 2-year coverage on electrical components for added confidence and protection.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Sargent Quality?

Sargent 8200 Series mortise locks deliver professional-grade reliability with patented design and construction rated for 16 million cycles in independently verified testing. The 10-year limited warranty with 2-year electrical component coverage demonstrates Sargent's commitment to quality. Engineered for demanding commercial applications where dependable performance and maximum security are essential.

Product Specs

Series:
8200 Series
Grade:
Grade 1
Keyed Function:
Single Cylinder
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Subcategory:
Bored Locksets
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Mortise
Lock Function:
Room Door
Product Type:
Mortise Locks
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Room Door
Product Category:
Mechanical Locks
Collection:
8200 Series
Department:
Door Hardware

Sargent 8224 EA 26D – Frequently Asked Questions

1) Does the Sargent 8224 need to be ordered handed, or can it be reversed on site?
Handing is not an ordering decision here. The 8224 lock body is field reversible, so one lock covers left and right hand openings and you can flip it during install. That matters if you are stocking spares for a building with doors swinging both ways.
2) What does the Room Door function on the Sargent 8224 actually do?
Room door function means a keyed single cylinder lock with a separate deadbolt: the lever retracts the latch for passage and the key throws the deadbolt for security. It is the function used on hotel-style and tenant room doors where the occupant wants a deadbolt behind them, as opposed to a storeroom function where the outside lever is always locked.
3) Will the Sargent 8224 latch into a strike I already have in the frame?
The latchbolt throws 3/4 inch and the lock works off a 2-3/4 inch backset, so it drops into a standard ANSI mortise frame prep. Any existing strike cut for a 3/4 inch throw mortise latch will take it. If the frame was prepped for a cylindrical lockset, it has to be re-prepped for a mortise pocket.
4) Is the Sargent 8224 fire rated for a 3 hour opening?
UL 10C fire rated up to 3 hours with NFPA 80 compliance, and it carries ANSI/BHMA A156.13 Series 1000 Operational Grade 1. That covers the stair and corridor doors in most commercial and institutional specs.
5) What do I have to specify when ordering a Sargent 8224 mortise lock?
Four decisions. Cylinder: standard cylinder, less cylinder, 70 prep for small format interchangeable core less core, or 60 prep for large format interchangeable core less core. Keying: keyed different, keyed alike, or to a key code (pick None if you ordered less cylinder). Then the lever, from A, B, E, F, J, L, P or W. Then the rose, in E at 3-1/16 inch, L at 3-1/2 inch, LN at 2 inch, or O at 2-3/4 inch. Finish is chosen separately from sixteen options.
6) Can I put the Sargent 8224 on my existing master key system?
It works with every SARGENT key system, including Degree, Signature, KESO and XC. If your building is already on a Sargent system, order it less cylinder or with the 60 or 70 interchangeable core prep and drop in your own cores rather than buying cylinders you will pull out anyway.
7) Can I put a Sargent 8224 on a 1-5/8 inch door, or do I need a different mortise lock?
The Sargent 8224 is specified for a 1-3/4 inch door thickness. For a thinner door, the Alarm Lock DL2700CR Trilogy T2 electronic mortise lock with classroom function and weatherproof design, and the DL3500CR Trilogy Grade 1 electronic mortise lock with 300 user codes and classroom function, both cover 1-5/8 to 1-7/8 inches. Both are Grade 1 and classroom function, so they suit a door that needs code entry rather than a keyed deadbolt. Measure the leaf at the lock edge before ordering - a mortise body sized for 1-3/4 inch leaves the trim standing proud on a thinner door.
8) What is the closest cross-brand equivalent to a Sargent 8224 mortise lock with deadbolt?
The Sargent 8224 is a Grade 1 heavy duty mortise lock with a single cylinder and deadbolt, set up for room door function with lever trim. The Cal-Royal NM8440 is the nearest cross-brand match in intent: a heavy duty Grade 1 privacy mortise lockset with deadbolt, built for a 1-3/4 inch door. Both put a deadbolt in a Grade 1 mortise body, so the mortise pocket and lever-height prep are the same class of opening. The difference is at the cylinder: the 8224 is keyed single cylinder, while the NM8440 is catalogued as a privacy/bed/bath function. Confirm which side the deadbolt is meant to be thrown from before you swap one for the other.
9) I need a keyed Grade 1 mortise lock but no deadbolt - what should I use instead of the Sargent 8224?
The 8224 carries a deadbolt alongside the latch, which is more prep and more hardware than an opening that only needs keyed latch control. For a keyed Grade 1 mortise without the deadbolt, the Accentra 8805FL is a Grade 1 storeroom mortise lock from the 8800 Series with the Arcadia lever, and the Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset with an interchangeable core option for a 1-3/4 inch door. Storeroom function keeps the outside lever locked at all times and releases by key, which is what most tenant-side and utility rooms are actually specified for.
10) What mortise lock should I use instead of the Sargent 8224 if the opening needs a keypad or card credential?
The 8224 is a mechanical lock with no electronic components, so credentials mean a different body. For standalone keypad entry, the BEST 45HZ EZ Series is an electronic keypad mortise lock with key override, and the Dormakaba E-Plex 2066 is an electronic pushbutton keyless mortise lock in the wide stile configuration. For card or mobile credentials, the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID on a 1-3/4 inch door, and the Schlage LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125 kHz proximity reader and a mobile enabled deadbolt with LED in Greenwich trim, right hand, rated 3 hours fire. If the site is already standardized on Sargent keyways, keep in mind the 8224 body works with the SARGENT key systems and the electronic bodies bring their own credential program.
11) Is a Kaba Ilco 185 mortise deadbolt a substitute for the Sargent 8224?
No. The Kaba Ilco 185 Series is a mortise deadbolt with no handing and no latch, so it locks the door but does not latch it or carry a lever. The Sargent 8224 is a lever-trimmed mortise lock whose deadbolt sits alongside a working latchbolt with a 3/4 inch throw, so the door latches on close and the bolt is additional. Same is true of the Alarm Lock DL4500 Series, which is a Grade 1 electronic mortise deadbolt with privacy keypad for doors 1-5/8 to 1-7/8 inch - it is a deadbolt function, not a latching lockset. If you replace an 8224 with either, you lose the latch and the door will stand unsecured whenever the bolt is retracted.
12) What mortise lock replaces a Sargent 8224 on a behavioral health or psychiatric unit door?
The 8224 uses standard lever trim in A, B, E, F, J, L, P and W lever styles, which are projecting levers. On a ligature-risk unit those are usually not permitted. The TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel, passage function, for a 1-3/4 inch door, and the MRX-A-01 is the same passage function with a satin stainless ligature resistant arch trim. Where the door needs push/pull operation instead, the Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant in satin stainless steel. All three are passage function, so plan separate hardware for any door on that unit that must actually lock.
13) The access control drawing calls for electric lock and unlock at the mortise - what takes the place of a Sargent 8224?
The 8224 is a mechanical body with no electrical provision. For an electrified mortise on the same class of opening, the Command Access ML190 Series is a motorized mortise lock with field selectable EL and EU operation on 24VDC in storeroom function, heavy duty. The BEST 45HW Series is a wired electromechanical heavy duty mortise lock running 12V or 24V. Schlage's L9092EU with 03A trim is a heavy duty corridor-function mortise with electric lock/unlock outside lever, keyed outside, request to exit, on 12/24VDC for a 1-3/4 inch door. Field selectable EL/EU on the ML190 matters if the fail-safe versus fail-secure call is still open at the time of order.
14) Is a Schlage PC10 the same thing as a Sargent 8224?
No - they are different lock types. The Schlage PC10 is a Grade 1 passage cylindrical lock with rose, non-keyed, for a 1-3/4 inch door; a cylindrical lock goes into a bored cross hole through the face of the door. The Sargent 8224 is a mortise lock, which needs a rectangular pocket routed into the door edge. The two preps are not interchangeable in either direction. If you are looking at a Grade 1 non-keyed mortise instead, the Schlage PM010 passage latch mortise lock is the mortise-prep counterpart for the same 1-3/4 inch door.
15) What finishes does the Sargent 8224 mortise lock come in to match the rest of my building?
Sixteen finishes: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark bronze, 10BE and 10BL dark oxidized bronze, 14 bright nickel, 15 satin nickel, 20D dark statuary bronze, 26 bright chrome, 26D satin chrome, 32 bright stainless, 32D satin stainless, plus BSP black and WSP white suede powder coat. 26D and 32D are the two that match most existing commercial openings.
16) Is the Sargent 8224 heavy duty enough for a high traffic entry?
It completed UL's Cycle Above and Beyond test at 16 million cycles under verification ID V584148, on top of Grade 1 certification. For a school corridor, a hospital wing, or a multi-tenant entry that sees thousands of operations a week, that cycle count is the number to quote in the submittal.
17) Should I use a mortise lock like the Sargent 8224 or a cylindrical lockset?
A mortise lock takes a routed pocket in the door edge and gives you a separate deadbolt plus a latch in one body, which is what the 8224's room door function uses. A cylindrical lock bores through the face and is faster to install but has no independent deadbolt. If the door is already mortised, stay mortise. If you are prepping new hollow metal and do not need a deadbolt, a bored Grade 1 lock such as the Schlage PC10 is the lighter prep.
18) What is the closest alternative to the Sargent 8224 if I need a different lock function?
Stay in Grade 1 mortise and change the function. Corbin Russwin ML2003 is a Grade 1 classroom mortise for 1-3/4 inch doors. Accentra 8805FL is a Grade 1 storeroom mortise. Cal-Royal NM8440 is a Grade 1 privacy mortise with a deadbolt for 1-3/4 inch doors, and NM8050 is the office/entrance version. All fit the same 1-3/4 inch door thickness the 8224 is built for.
19) I need keypad or card access on this opening. Is the Sargent 8224 the wrong lock?
Yes, for access control the 8224 is the wrong part. It is a mechanical lock with no electronics. For a Grade 1 mortise with credentials, look at the TownSteel FME-2000 with RFID for 1-3/4 inch doors, the Schlage LEMD-GRW ENGAGE wireless mortise with a 125kHz proximity reader and a 3 hour fire rating, or the Dormakaba E-Plex E5086 pushbutton and card mortise lock. For wired electrified operation there is the BEST 45HW at 12V/24V.
20) My doors are 1-5/8 to 1-7/8 inches thick. Can I still use the Sargent 8224?
No. The 8224 is set up for 1-3/4 inch doors. If your openings run 1-5/8 to 1-7/8 inches, the Alarm Lock Trilogy locks cover that range, including the DL3500CR Grade 1 classroom mortise and the DL2700CR weatherproof classroom version. For thicker doors up to 2-1/2 inches, Hager's 3800 Series passage mortise locks with a 2-3/4 inch backset span 1-3/4 to 2-1/2 inches.
21) Which rose size do I need for the Sargent 8224 to cover the old trim marks?
Four rose sizes are offered: LN at 2 inches, O at 2-3/4 inches, E at 3-1/16 inches, and L at 3-1/2 inches. If you are replacing older escutcheon trim and want to hide the previous prep or paint shadow, the 3-1/2 inch L rose gives the most coverage; the 2 inch LN is the smallest footprint for a clean new door.
22) What is the difference between a Sargent 8224 and an office or entrance mortise lock like the Cal-Royal NM8050 or Hager 3850E?
The Sargent 8224 is a keyed single cylinder Grade 1 mortise with a deadbolt, in room door function. The Cal-Royal NM8050 is a heavy duty Grade 1 entrance/office mortise lockset with an auxiliary deadlatch on a 1-3/4 inch door - it secures the latch against carding rather than adding a separate bolt. The Hager 3850E is a 3800 Series Grade 1 office mortise lock with lever and escutcheon, non-keyed, with a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inches thick. If the office door only needs an inside push-button or thumbturn to lock out, the office functions cover it; if the tenant expects a bolt they throw and key from outside, the 8224 is the one that carries the deadbolt. Note the 8224 also uses a 2-3/4 inch backset, so it and the 3850E share that dimension.
23) The door does not need to be keyed at all - what is the simpler alternative to a Sargent 8224?
If nothing on the opening has to lock, the deadbolt and cylinder on the 8224 are hardware you will never use. The Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating, in the MA Series. The Schlage PM010 is a Grade 1 passage latch mortise lock, non-keyed, for a 1-3/4 inch door, and the Hager 3810S and 3810E are 3800 Series Grade 1 passage mortise locks with a 2-3/4 inch backset - the 3810S with rose trim, the 3810E with escutcheon - both for doors 1-3/4 to 2-1/2 inches. The Hager pair matches the 8224 at 2-3/4 inch backset, and the rose-versus-escutcheon choice mirrors the trim decision on the 8224 itself.
24) Are Emtek mortise entrance locksets like the 3102 Memphis an alternative to the Sargent 8224?
They serve a different purpose. The Emtek 3102 Memphis, 3104 Hamilton, 3106 Manhattan and 3019 Brisbane brass mortise entrance locksets are all dummy function - they are fixed trim with no latch or bolt operation behind them, used on an inactive leaf or a pull-only door. The Sargent 8224 is a Grade 1 keyed working lock with a latchbolt and deadbolt. If you are matching appearance on a pair of doors where only one leaf operates, a dummy set is the correct partner; it is not a security substitute for the 8224.
25) I only need the mortise lock body, not the trim - what are my options besides the Sargent 8224?
The Sargent 8224 is ordered as a complete assembly with lever and rose trim selected. If the trim on the door is staying and only the body is being replaced, the BEST 45H Series is a heavy duty mortise lock body in public entrance function with field reversible operation, and the 45HCA Series is a heavy duty mortise lockbody with intruder function. The Baldwin 6301 and 6310 are also sold as mortise lock bodies, at 2-1/2 inch backset. Match the hub and cylinder location of the existing trim before committing to a body-only order.
26) Sargent 8224 versus a Grade 2 mortise lock - what does the grade difference change?
The Sargent 8224 holds ANSI/BHMA A156.13 Series 1000 Operational Grade 1 and was run to 16 million cycles on the UL Cycle Above and Beyond test. Among mortise locks the Schlage LEBMB-ADD is Grade 2, a mobile-enabled mortise lock with push button and LED covering privacy, office and apartment functions, 3 hour fire rated, for a 1-3/4 inch door. Both are mortise-prep locks for the same door thickness, but Grade 1 and Grade 2 are separate cycle and strength tiers under the same standard, and a spec that calls out Grade 1 will not accept a Grade 2 body. Check what the drawing requires before substituting.
27) Which mortise locks besides the Sargent 8224 carry a 3 hour fire rating for a stairwell or corridor door?
The Sargent 8224 is UL 10C fire-rated up to 3 hours with NFPA 80 compliance. If the opening also needs credentials, the Schlage LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125 kHz proximity reader and mobile enabled deadbolt with LED, rated 3 hours. For a non-keyed fire door, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with a fire rating and field reversible operation. Fire door assemblies also have to keep their labeled strike and closer intact, so verify the whole assembly and not just the lock when you change bodies.
28) Can I change the function of a Sargent 8200 mortise lock after it is installed?
The 8200 lock body is multi-functional and supports on-site function switching, with 56 functions across the series including electromechanical, security and monitoring options. That is useful for an institution standardizing on one lock body across a facility and changing behavior door by door without re-stocking.
29) Is there an installation template for prepping doors for the Sargent 8200 mortise lock?
Yes. Sargent publishes a 7800/8200 Series mortise lock template covering all sectional rose trims and escutcheon trims, plus the full 7800/8200 mortise lock catalog. Use the template to lay out the mortise pocket, the cylinder hole and the trim holes before you route.
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Does the Sargent 8224 EA 26D come with a warranty?
Absolutely. The Sargent 8224 EA 26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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